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J. B. BLAIR.

Solar Camera. I

\ No. 60,129. V Patented Dec. 4, 1866.

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' vJ. B. BLAIR, OFP I A ELPHIA, i I Letters latjent No 60,129, dated Decernber iplsfld."

v SPECIFIOA'I'IQIN I I u y I Be it known that I J. B. BLAIR, of Philadelphia, in the county of Stateof Pennsylvania, have invented a new and useful Improvement on the Solar Camerat and l dohereby declare that following is a full, clear, and exact description of the construction and operationof thelsame;referencebeing had to the annexed drawingspmaking a part of this specification, in which-1 3 l 1 1 Figure 1 is a perspective view; and i Figure 2 is a longitudinal elevation; I Each part being distinguished by the same letter'in both figures. u u u s h uu The nature of my invention consists iii providing the reflecting solarcamerawith an: adjustable circular bearing for the reflector, so that when adjusted and the instrument properly set,thereqhired compoundmotibn i will be given by simply turning the reflector in the usual way around theagzlis of jthellens; the chief object aimed at being the feasibility of attaching clock-work by'simple connection either by cord 01' tooth. gearing. i The. I instrument may be constructed of iron or other suitable material. u f t Y 1 1 5 A A A A isthe frame supporting theinstrument/ G is the outerandfstationary cylinder; to contain jlthe i 1 lens. R is the reflector frame attached to the cylinder-"G by the lugs l l. "C isjthe inn erjand revolvinglcylinder 1 i F is apiece for the support of the reflector frame. The reflector frame is attached to thecylinder 'C by tlie rod r passing through the lugs Z Z; from one to the other, thus forming a hinge. uThensame rodfr, passes alsb 1 through two lugs on the piece FQwhich piece is thus permitted to move freely upon the same hinge with then reflector. A screw-bolt, .9, projects downwards from the reflector frame and pass es through'aslot in the piece which projects from the piece The two nuts, m m, serveto. fasten the reflector frame at any desired angle 1 u with the piece F. E is an adjustable circular bearing hung upon pivotsat eachen d, o c; A screw-bolt, a; projectsfrom the lower part of the piece E, and passes through a slot in the piece 6, projectingdownwardfrom v the cylinder'C. The two nuts; an; serve to fasten the circular piece Etc any desired inclination. Afbarfl j 1 extends from F totlie circular piece E, and enters a-groove in said piece E. This bar, has a ball upon the. end that enters groove, in order that it may move therein with greater freedom. 4 The cord, is, passesaround thei movable cylinder to be attached to clock-work. w I t 1 p t The'mode of operating the instrument is as follows: I placethe iustrument due north and south, the reflector pointing southward, and also level it east and west by the pivots m), and then I adjustthe circular piece Eto. i an inclination that shall suitthe latitude in which the instrument is to be used. In like manner I adjust th e reflector; and finally I attach the cord into suitable clock-work. The instrument being now started, by starting r the clock-work, will keep a constant beam of sunlight upon the picture. 1 1 i 1 1 I What I claim as my invention, and desire to secure by. Letters Patent, isr The application'of an adjustable piece, E, to the use and purpose substantially as set forth, r

I V l J B. BLAIR;

Witnesses:

Jossrn Hmrn, G. P. Noam. 

